sys: make: remove obsolete network Makefile includes

sys/Makefile

@@ -7,48 +7,12 @@ endif
 ifneq (,$(filter shell_commands,$(USEMODULE)))
     DIRS += shell/commands
 endif
-ifneq (,$(filter net_if,$(USEMODULE)))
-    DIRS += net/link_layer/net_if
-endif
-ifneq (,$(filter l2_ping,$(USEMODULE)))
-    DIRS += net/link_layer/ping
-endif
-ifneq (,$(filter socket_base,$(USEMODULE)))
-    DIRS += net/transport_layer/socket_base
-endif
-ifneq (,$(filter udp,$(USEMODULE)))
-    DIRS += net/transport_layer/udp
-endif
-ifneq (,$(filter tcp,$(USEMODULE)))
-    DIRS += net/transport_layer/tcp
-endif
 ifneq (,$(filter net_help,$(USEMODULE)))
     DIRS += net/crosslayer/net_help
 endif
-ifneq (,$(filter protocol_multiplex,$(USEMODULE)))
-    DIRS += net/link_layer/protocol-multiplex
-endif
-ifneq (,$(filter sixlowpan,$(USEMODULE)))
-    DIRS += net/network_layer/sixlowpan
-endif
-ifneq (,$(filter sixlowborder,$(USEMODULE)))
-    DIRS += net/network_layer/sixlowpan/border
-endif
-ifneq (,$(filter rpl,$(USEMODULE)))
-    DIRS += net/routing/rpl
-endif
 ifneq (,$(filter routing,$(USEMODULE)))
     DIRS += net/routing
 endif
-ifneq (,$(filter ieee802154,$(USEMODULE)))
-    DIRS += net/link_layer/ieee802154
-endif
-ifneq (,$(filter ccn_lite,$(USEMODULE)))
-    DIRS += net/ccn_lite
-endif
-ifneq (,$(filter ccn_lite_client,$(USEMODULE)))
-    DIRS += net/ccn_lite/util
-endif
 ifneq (,$(filter oneway_malloc,$(USEMODULE)))
     DIRS += oneway-malloc
 endif